Which reaction creates Karst topography?
O
O
O
A. Carbonic acid with limestone
B. Water with granite
c. Water with limestone
O
D. Hydrochloric acid with granite

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?